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Registry Services Changes - Final Report

Procedure for use by ICANN in considering requests for consent and related contractual amendments to allow changes in the architecture or operation of a gTLD registry

This procedure, developed through the GNSO Policy Development Process, has been unanimously adopted by the GNSO Council as a Supermajority Recommendation for consideration and adoption by the Board as Consensus Policy. The Final Report describing this procedure has been posted since 10 July on the GNSO web site. A final public comment period is now opened in accordance with the ICANN Bylaws, Article 3, Section 6. Following this period, the Recommendation will be submitted to the Board for decision. The deadline for comments is Friday 26 August 2005. Comment can be made to registry-services-report@icann.org. The archive of comments is available at <http://forum.icann.org/lists/registry-services-report/>.


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Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as""icann.org"" is not an IDN."